Next time you go for XP at CR, among your half killers, try not to get the optimum 3x Othells +1x Yul (for Slow,Stun etc) but get a Sayha instead of Yul. Why? Have you notice for example Antharas in the Balthus Expendition or Kartia bosses how stand still after Sayha debuff? You have! Imagine that on Nerva orcs. How easy it will be for the tank, and the daggers to spam stabs from behind, and tank to not get dizzy from running in circles like crazy.